{"id":4523,"date":"2022-04-15T14:04:02","date_gmt":"2022-04-15T14:04:02","guid":{"rendered":"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/why-do-two-moon-sides-look-so-different-scientists-may-have-found-the-answer"},"modified":"2022-04-15T15:12:56","modified_gmt":"2022-04-15T15:12:56","slug":"why-do-two-moon-sides-look-so-different-scientists-may-have-found-the-answer","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/sierra-leone\/all-news\/why-do-two-moon-sides-look-so-different-scientists-may-have-found-the-answer","title":{"rendered":"Why Do Two Moon Sides Look So Different? Scientists May Have Found the Answer"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Sierra-Leone. <\/strong><\/span>The face of the Moon that is always visible to Earth is strikingly different from its other side, which we know as the &#8220;dark side of the Moon&#8221;. The latter is significantly more cratered, and this striking dissimilarity has long bothered scientists.<\/p>\n<p>The Apollo-era puzzle of the Moon&#8217;s two sides looking so different may have been solved, and it seems as though the answer can be explained by referring to the example of the South Pole\u2013Aitken basin (SPA), according to latest research.<\/p>\n<p>The study was led by Brown University, with its press release revealing that the scientists used a computer simulation to examine the impact that actually created the SPA &#8211; one of the oldest collisions that ever happened on the Moon. It occurred some 4.3 billion years ago, just at the right time to be responsible for making the changes in the lunar interior that prompted its sides to look different.<\/p>\n<p>The researchers from Brown University teamed up with their confreres from Purdue University, the University of Arizona&#8217;s Lunar and Planetary Laboratory, Stanford University and NASA\u2019s Jet Propulsion Laboratory.<\/p>\n<p>The scientific community first questioned the origin of the lunar sides&#8217; differences in Sixties, after the Soviet Luna missions and the US Apollo programme revealed them. Initially, it was only about the differences in volcanic deposits, but future missions revealed that the geochemical composition of the two Moon faces was different as well.<\/p>\n<p>Additionally, the near side of the Moon has a compositional anomaly known as the Procellarum KREEP Terrane (PKT) \u2014 a concentration of potassium (K), rare earth elements (REE), phosphorus (P), along with heat-producing elements such as thorium, which is concentrated largely in volcanic plain Oceanus Procellarum, and is not observed elsewhere on the Moon.<\/p>\n<p>It turns out that this anomaly could also be explained by the emergence of the SPA and how the heat that formed it impacted the PKT. According to the findings, &#8220;the KREEP material would have ridden the wave of heat emanating from the SPA impact zone like a surfer&#8221;, with the heat plume bringing it en masse to the near side of the Moon. The team ran several simulations to explore different scenarios of the impact, but all of them ended up being consistent with KREEP concentrations on the nearside, potentially explaining the PKT anomaly.<\/p>\n<p>\u201cHow the PKT formed is arguably the most significant open question in lunar science,\u201d Jones said. \u201cAnd the South Pole\u2013Aitken impact is one of the most significant events in lunar history. This work brings those two things together, and I think our results are really exciting.\u201d<\/p>\n<p><strong>For More News And Analysis About <a href=\"https:\/\/www.africa-press.net\/sierra-leone\">Sierra-Leone<\/a> Follow <a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Sierra-Leone. The face of the Moon that is always visible to Earth is strikingly different from its other side, which we know as the &#8220;dark side of the Moon&#8221;. The latter is significantly more cratered, and this striking dissimilarity has long bothered scientists. The Apollo-era puzzle of the Moon&#8217;s two sides looking so [&hellip;]<\/p>\n","protected":false},"author":84,"featured_media":4522,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,8,9],"tags":[291,293,292],"class_list":["post-4523","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-homepage-english","category-miscellaneous","tag-africa-press","tag-africa-press-sierra-leone","tag-sierra-leone"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Why Do Two Moon Sides Look So Different? 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